3243685 has 16 divisors (see below), whose sum is σ = 4257792. Its totient is φ = 2361600.

The previous prime is 3243683. The next prime is 3243697. The reversal of 3243685 is 5863423.

3243685 = T₁₄ + T₁₅ + ... + T₂₆₈.

It is not a de Polignac number, because 3243685 - 2¹ = 3243683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a d-powerful number, because it can be written as 3⁴ + 2⁵ + 4¹⁰ + 3⁹ + 6² + 8⁷ + 5⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2020 + ... + 3250.

It is an arithmetic number, because the mean of its divisors is an integer number (266112).

Almost surely, 2^3243685 is an apocalyptic number.

It is an amenable number.

3243685 is a deficient number, since it is larger than the sum of its proper divisors (1014107).

3243685 is a wasteful number, since it uses less digits than its factorization.

3243685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its digits is 17280, while the sum is 31.

The square root of 3243685 is about 1801.0233202266. The cubic root of 3243685 is about 148.0288019183.

The spelling of 3243685 in words is "three million, two hundred forty-three thousand, six hundred eighty-five".